Home / 651,421,538.40-977,274,025.20-214,647,895.20

Finding the Fourth Proportional to 651,421,538.40, 977,274,025.20 and 214,647,895.20

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Solution

The fourth proportional to 651,421,538.40, 977,274,025.20 and 214,647,895.20 is: 322,018,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,421,538.40 : 977,274,025.20 = 214,647,895.20 : x
  2. Step 2: Convert to fraction form
    651,421,538.40/977,274,025.20 = 214,647,895.20/x
  3. Step 3: Cross multiply
    651,421,538.40x = 977,274,025.20 × 214,647,895.20
  4. Step 4: Simplify right side
    651,421,538.40x = 209,769,812,542,811,744
  5. Step 5: Solve for x
    x = 209,769,812,542,811,744/651,421,538.40
  6. Step 6: Final answer
    x = 322,018,539.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.